Re-examination of the transportation abilities of the 5:2 MMR with Jupiter

sobota 2024‐04‐20 11:15 – 11:35
  • Fakulta matematiky, fyziky a informatiky, Univerzita Komenského v Bratislave
  • Astronomický ústav, Slovenská akadémia vied

Resonances in the main asteroid belt play a significant role in dynamical evolution of small bodies in the Solar system. They are capable of driving objects into near-Earth object (NEO) region as well. This talk will deal with the transportation abilities of 5:2 mean motion resonance (MMR) with Jupiter. We focus on a greater portion of the resonance than in the previous study of Todorović (2017). We are also interested in an elimination course along q ≃ 0.26 au that was discovered previously. Moreover, we search for orbits that potentially hazardous asteroids (PHAs) have and for orbits that correspond to recent L chondrite meteorites. Firstly, short-term FLI (Fast Lyapunov Indicator) maps of 5:2 MMR were computed in order to distinguish between stable and unstable orbits. Then over 10 000 unstable particles were selected and integrated for a longer period of time, up to 10Myr, to reveal the transportation abilities of the resonance.